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How far can VOT take us? Voicing categorization with and without the use of VOT
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In: Proceedings of the Society for Computation in Linguistics (2018)
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An Evidence accumulation model of acoustic cue weighting in vowel perception
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An evidence accumulation model of acoustic cue weighting in vowel perception
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Abstract:
Listeners rely on multiple acoustic cues to recognize any phoneme. The relative contribution of these cues to listeners' perception is typically inferred from listeners' categorization of sounds in a two-alternative forced-choice task. Here we advocate the use of an evidence accumulation model to analyze categorization as well as response time data from such cue weighting paradigms in terms of the processes that underlie the listeners' categorization. We tested 30 Dutch listeners on their categorization of speech sounds that varied between typical /ɑ/ and /a:/ in vowel quality (F1 and F2) and duration. Using the linear ballistic accumulator model, we found that the changes in spectral quality and duration lead to changes in the speed of information processing, and the effects were larger for spectral quality. In addition, for stimuli with atypical spectral information, listeners accumulate evidence faster for /ɑ/ compared to /a:/. Finally, longer durations of sounds did not produce longer estimates of perceptual encoding time. Our results demonstrate the utility of evidence accumulation models for learning about the latent processes that underlie phoneme categorization. The implications for current theory in speech perception as well as future directions for evidence accumulation models are discussed.
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Keyword:
linear ballistic accumulator; phoneme categorization; response time
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URL: http://hdl.handle.net/1959.13/1386186
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Speech reductions cause a de-weighting of secondary acoustic cues
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In: Interspeech 2016 ; https://hal.archives-ouvertes.fr/hal-01363642 ; Interspeech 2016, Sep 2016, San Francisco, United States. ⟨10.21437/Interspeech.2016-343⟩ (2016)
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Implicit and explicit categorization of speech sounds - dissociating behavioural and neurophysiological data
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Identification of acoustic cues involved in degraded speech comprehension ; Identification des indices acoustiques utilisés lors de la compréhension de la parole dégradée
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In: https://tel.archives-ouvertes.fr/tel-01266326 ; Neurosciences [q-bio.NC]. Université Claude Bernard - Lyon I, 2015. Français. ⟨NNT : 2015LYO10221⟩ (2015)
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WHERE DO PHONEMES COME FROM? A VIEW FROM THE BOTTOM
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In: International Journal of English Studies; Vol. 6 No. 2 (2006): Cognitive Phonology; 19-54 ; International Journal of English Studies; Vol. 6 Núm. 2 (2006): Cognitive Phonology; 19-54 ; 1989-6131 ; 1578-7044 (2009)
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Where do Phonemes Come from? A View from the Bottom
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In: http://www.otago.ac.nz/linguistics/where do phonemes come from.pdf (2006)
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Hemispheric predominance assessment of phonology and semantics: A divided visual field experiment
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In: ISSN: 0278-2626 ; EISSN: 1090-2147 ; Brain and Cognition ; https://hal.archives-ouvertes.fr/hal-00169565 ; Brain and Cognition, Elsevier, 2006, 61, pp.298-304. ⟨10.1016/j.bandc.2006.02.005⟩ (2006)
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PERCEVAL: une station automatisée de tests de PERCeption et d'EVALuation auditive et visuelle
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In: ISSN: 2118-870X ; EISSN: 2264-7082 ; Travaux Interdisciplinaires du Laboratoire Parole et Langage d'Aix-en-Provence (TIPA) ; https://hal.archives-ouvertes.fr/hal-00134194 ; Travaux Interdisciplinaires du Laboratoire Parole et Langage d'Aix-en-Provence (TIPA), Laboratoire Parole et Langage, 2003, 22, pp.115-133 (2003)
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PERCEVAL: a Computer-Driven System for Experimentation on Auditory and Visual Perception
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In: International Congress of Phonetic Sciences (ICPhS) ; https://hal.archives-ouvertes.fr/hal-00142980 ; International Congress of Phonetic Sciences (ICPhS), 2003, Barcelona, Spain. pp.1421-1424 (2003)
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